Occidental Petroleum hasn’t closed the acquisition of Anadarko yet, but analysts are already speculating about which Anadarko assets Occidental could divest to cut part of the debt it has taken on from the transaction and to focus on the core assets after the deal—Anadarko’s prime U.S. shale acreage. The sooner Occidental delivers on its non-core asset sales, the sooner it can start consolidating complementary assets with Anadarko to achieve synergies and regain some favor with investors, shareholders, and the market, mergers…